Climate change by vulcanism -- there are 47 volcanos active today

World's largest active volcano, Mauna Loa, erupts on Hawaii's Big Island for first time in 38 years - triggering more than DOZEN earthquakes: Fears of major ash fall as sky turns flame red

• Mauna Loa, the world's largest active volcano, erupted on Monday morning on Hawaii's Big Island 
• United States Geological Survey says there is no risk of magma fall but an ash fall advisory is in place
• Residents on the Big Island were woken by earthquakes and an amber sky as a result of the eruption 
• Mauna Loa last erupted in 1984; today brings an end to its longest ever quiet period 
• Some are cautiously watching for lava flows and have been told to be ready to evacuate if necessary 
• The last eruption lasted several days but did not flow into any of the island's communities